
function foo(a,n) {
  var x = {a:[]};
  for (var i = 0; i < n; ) {
    a[i];
    x.a[i];
    a[++i];
  }
}
var a = [1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,0];
var n = a.length;
foo(a,n);
